Well Nikon can provide sraw along with higher fps with D800/E to meet your needs. I am not sure if they will. As far as its af is concerned it is top notch.So instead of asking Nikon for another body, people can start demanding a 'paid' firmware upgrade to give higher fps n smaller images, even tho free will be better!Which would you rather chose?

One answer to the D800 vs. D700 speed upgrade issue would be to come out with a D800s or D810 that could do 6fps at 36MP and 8fps in an 18-24MP sRAW-like format (still using the full sensor capture though, not a crop mode). Then you could kind of have your cake and eat it too. I don't think this can be done with a firmware upgrade to the D800 though because I doubt the D800 mirror can go 8fps and I don't think the EXPEED 3 knows how to do an sRAW-like format (which probably requires hardware support to achieve 8fps).

I have long believed that we're reached the point with the D800 where it's simply more resolution than is desired for some uses and the best way for Nikon to deal with that is to continue to advance the resolution, but to offer RAW-like reduced resolution captures from the full sensor (sRAW-like done right). Then, you could truly have your cake and eat it too with a camera that does ultra high resolution for landscape, but can also go fast at a lower resolution for the action photographer who's workflow and fps is negatively impacted by very high resolution captures. Offering this capability could allow a single camera to serve a wider variety of needs.

I'd probably buy a D810 that could produce 16-24MP at 8fps (full sensor capture, RAW-like capture, not crop mode, not JPEG) and could also do 36MP (or higher) at 4-6 fps. That would be a killer camera.

I am sure D800/E body is not the limiting factor to flap the mirror (it can already flap at 1/8000 of a second). Expeed 3 may be able to crunch it in 12bit default mode (non-ADL, non-NR etc). I will be happy to pay extra dollars (400-500?) to get this upgrade and maybe a fine tune for another 100. After all photoshop can charge us 120+yr for barely upgrading their software on the average (in cloud). Hope it kicks off. I will be happy, Nikon still makes the bucks to focus on bodies with upgradeable software and impressive feature set. It is a win win across the spectrum of users.

anyway, im just throwing enough ideas and hopefully something will stick its as good of a speculation but variable and dynamic to adjustments rather than sticking with a "born with" set of features. add in replacement sensor, you have a mindboggling set of options and combinations.